A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 5998-00-763-6162
NSN 6610-01-067-6591
NSN 7035-01-105-3787
NSN 5895-01-248-0585
NSN 6645-00-097-9269
NSN 6110-01-452-9388
NSN 5835-00-409-8355
NSN 6110-01-610-5244
NSN 5950-01-155-3787
NSN 6650-01-616-4344
NSN 6105-01-415-4844
NSN 5920-01-586-4072